Hello, I am using a Lenovo Edge E530 and, with kernel 3.11.0-rc3, I had to change to this parameter to the kernel boot: GRUB_CMDLINE_LINUX="acpi_osi=\"!Windows 2012\"" instead of previous GRUB_CMDLINE_LINUX="acpi_osi=Linux acpi_backlight=vendor" to be able to change brightness. In some kernel versions before, it worked, but with 15 levels, but in graphical system brightness bar was not moving. Now I have, though, 8 possible values for brightness and brightness bar shows its correct position. Josep On 2 August 2013 08:00, Aaron Lu <aaron.lu@xxxxxxxxx> wrote: > On 08/01/2013 04:07 PM, Borislav Petkov wrote: >> On Wed, Jul 31, 2013 at 11:16:52PM +0200, Rafael J. Wysocki wrote: >>> Does reverting efaa14c help? >> >> Nope. >> >> But see my other reply to Aaron. > > Assume you have specified to use intel_backlight in xorg.conf, does > booting with video.brightness_switch_enabled=0 help? > > Thanks, > Aaron > -- > To unsubscribe from this list: send the line "unsubscribe linux-kernel" in > the body of a message to majordomo@xxxxxxxxxxxxxxx > More majordomo info at http://vger.kernel.org/majordomo-info.html > Please read the FAQ at http://www.tux.org/lkml/ -- -- Salutacions...Josep -- -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
